Operator`s manual
Battery not charging. 
1. 
Alternator drive. 
1. 
Check drive belt tension.  Be 
sure alternator tnrns freely.  Check 
for loose connections.  Check 
output with voltmeter.  Ensure 
12 
volts are present 
at 
the R terminal. 
Battery runs down. 
1. 
Oil pressure switch. 
1. 
Observe 
if 
gauges and panel 
lights are activated when engine is 
not running.  Test the oil pressure 
switch. 
2. 
High resistance leak to 
2. 
Check wiring.  Insert sensitive 
ground. 
(0-.25 Amp) meter in battery lines. 
(Do not start engine.) Remove 
connections and replace after short 
is located. 
3. 
Low resistance leak. 
3. 
Check all wires for temperature 
rise to locate the fault. 
4. 
Alternator. 
4. 
Disconnect alternator at output, 
after a good battery charging. 
If 
leakage stops, remove alternator 
and bench test.  Repair 
or 
replace. 
WESTERBEKE GENERATORS 
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